Lauren, 27, found fame while living in the Californian seaside town and starred alongside her school friends in the hit TV show Laguna Beach: The Real OC.
The fashionista's family still live in the picturesque area and, earlier this week, Lauren travelled home for a visit with boyfriend William Tell and her dogs Chloe and Fitz.
While at the beach, Lauren snapped a picture of rescue pup Fitz sitting in William's arms and shared it with her fans on Instagram. Alongside it, she commented: "Little beach bum."
She also uploaded a photograph of a bright pink frisbee embelished with the words "Laguna Beach Club", which sent fans wild!
One replied: "Aw! Laguna Beach." Another added: "Nostalgia...." One fan even referenced Lauren's friend/ former boyfriend Stephen Colletti, who she dated on the MTV show.
They simply wrote: "STEPHENNNNNNNN!"
Lauren's life now is a world away from the one she had while at Laguna Beach High School, but it's good to see she hasn't forgotten her roots!